The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 1990
Filed:
May. 08, 1986
Yukio Umetani, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A program-controlled computer includes a first unit for executing an addition or a substraction on a first floating-point data and a second floating-point data inputted thereto, a second unit for receiving the exponents of the first and second floating-point data, for determining whether or not an absolute value of a difference between the exponents exceeds a predetermined value defined as a number of digits of a mantissa of the first or second floating-point data, and for generating an interrupt signal when the absolute value exceeds the number of digits, and third unit connected to the second unit for interrupting a program being executed in response to the interrupt signal so as to execute an interrupt processing program associated with the interrupt signal.